.travis.yml in PageRankr-3.1.1 vs .travis.yml in PageRankr-3.1.2

- old
+ new

@@ -1,6 +1,5 @@
 rvm:
   - 1.8.7
   - 1.9.2
   - 1.9.3
-  - rbx-2.0
   - ree
\ No newline at end of file